Biotic factors include animals, plants, fungi, bacteria, and protists. Some examples of abiotic factors are water, soil, air, sunlight, temperature, and minerals.
The region that would be eroded the most would be those at the slopes of the mountain. When heavy rainfall comes, the soil in these regions gets soften thus being forced down forming a run-off due to the force of gravity. These eroded soil would eventually continue to the valleys thus causing landslides.
C; to stop pathogens with light harming the host cell
